Home / 145,274.96-218,278.92-139,370.32

Finding the Fourth Proportional to 145,274.96, 218,278.92 and 139,370.32

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Solution

The fourth proportional to 145,274.96, 218,278.92 and 139,370.32 is: 209,407.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,274.96 : 218,278.92 = 139,370.32 : x
  2. Step 2: Convert to fraction form
    145,274.96/218,278.92 = 139,370.32/x
  3. Step 3: Cross multiply
    145,274.96x = 218,278.92 × 139,370.32
  4. Step 4: Simplify right side
    145,274.96x = 30,421,602,929.65
  5. Step 5: Solve for x
    x = 30,421,602,929.65/145,274.96
  6. Step 6: Final answer
    x = 209,407.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.